/Engine/Source/Runtime/TypedElementFramework/Public/Elements/Framework/TypedElementList.h
Remove any elements that match the given predicate from this element list.
The number of elements removed.
template<typename BaseInterfaceType> int32 RemoveAll ( [TFunctionRef](API\Runtime\Core\GenericPlatform\TFunctionRef)< bool(const [TTypedElement](API\Runtime\TypedElementFramework\Elements\Framework\TTypedElement)< BaseInterfaceType > &)> InPredicate )